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High-temperature plumbing and advanced reactors
The use of nuclear fission power and its role in impacting climate change is hotly debated. Fission advocates argue that short-term solutions would involve the rapid deployment of Gen III+ nuclear reactors, like Vogtle-3 and -4, while long-term climate change impact would rely on the creation and implementation of Gen IV reactors, “inherently safe” reactors that use passive laws of physics and chemistry rather than active controls such as valves and pumps to operate safely. While Gen IV reactors vary in many ways, one thing unites nearly all of them: the use of exotic, high-temperature coolants. These fluids, like molten salts and liquid metals, can enable reactor engineers to design much safer nuclear reactors—ultimately because the boiling point of each fluid is extremely high. Fluids that remain liquid over large temperature ranges can provide good heat transfer through many demanding conditions, all with minimal pressurization. Although the most apparent use for these fluids is advanced fission power, they have the potential to be applied to other power generation sources such as fusion, thermal storage, solar, or high-temperature process heat.1–3
Masatoshi Ohta, Masami Fukui
Fusion Science and Technology | Volume 41 | Number 3 | May 2002 | Pages 510-514
Analysis and Monitoring | Proceedings of the Sixth International Conference on Tritium Science and Technology Tsukuba, Japan November 12-16, 2001 | doi.org/10.13182/FST02-A22641
Articles are hosted by Taylor and Francis Online.
Tritium compounds need to be separated to each chemical form for reasonable and continuous monitoring of tritium compounds. In this study, the continuous monitoring of HT in the air containing HT and HTO was investigated using the separation cell made of porous Vycor glass tube. The apparatus for a continuous and selective monitoring of tritium compounds in the air containing HT and HTO was constructed of radioactive gas monitor, ion chamber and the separation cell. An air containing tritium compounds (HT, HTO, etc.) was provided by Research Reactor Institute of Kyoto University. In the air containing of HT and HTO, HT is found to permeate selectively through the pores of the porous Vycor glass tube wall.
